Spring Summer trend of nails is a mixture of styles in which anything goes, with a wide variety of tones, from the most shoking, metallic or matte and styles such as French or New Nail Art, everything is permitted and must be given free rein to the imagination. There’s something for everyone tastes. Besides the hit of the season are the short, square and very bright nails. In any color, carried in all chromatic harmonies, all the nuances and even the most daring fluorescent. Of course, never go into oblivion nude tones that remain timid among such explosion of color, and pastel, delicate finish.   There used to be able…